Global Patent Index - EP 0841658 B1

EP 0841658 B1 2001-01-17 - Optical disc, optical disc recording reproducing apparatus and production method of the optical disc

Title (en)

Optical disc, optical disc recording reproducing apparatus and production method of the optical disc

Title (de)

Optische Platte, Gerät zur Aufnahme und Wiedergabe einer optischen Platte und Herstellungsverfahren der optischen Platte

Title (fr)

Disque optique, appareil d'enregistrement et de reproduction de disque et méthode de production du disque

Publication

EP 0841658 B1 (EN)

Application

EP 97119799 A

Priority

JP 31698396 A

Abstract (en)

[origin: EP0841658A2] A read only memory (ROM) disc 10 has an annular ROM area 12 in an outer area thereof, and a random access memory (RAM) disc 20 has an annular RAM area 22 in an inner area thereof. The ROM disc and the RAM disc are manufactured independently each other under respective preferable conditions. An optical disc 30 is provided by adhering the ROM disc and the RAM disc each other. An optical pickup 32 reproduces the optical disc or records thereon by irradiating a light from one side thereof. <IMAGE>

IPC 1-7 (main, further and additional classification)

G11B 7/24; G11B 7/00; G11B 7/26

IPC 8 full level (invention and additional information)

G11B 7/00 (2006.01); G11B 7/007 (2006.01); G11B 7/24 (2006.01); G11B 7/26 (2006.01); G11B 7/30 (2006.01); G11B 7/0037 (2006.01)

CPC (invention and additional information)

G11B 7/0079 (2013.01); G11B 7/24 (2013.01); G11B 7/26 (2013.01); G11B 7/0037 (2013.01); G11B 7/261 (2013.01); G11B 7/263 (2013.01)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 0841658 A2 19980513; EP 0841658 A3 19981028; EP 0841658 B1 20010117; CN 1096666 C 20021218; CN 1194435 A 19980930; DE 69703924 D1 20010222; DE 69703924 T2 20010809; JP 3201289 B2 20010820; JP H10143920 A 19980529; KR 100258671 B1 20000615; US 6031808 A 20000229

INPADOC legal status


2015-11-30 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2015-06-02 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

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2012-08-10 [REG FR TP] TRANSMISSION OF PROPERTY

- Owner name: JVC KENWOOD CORPORATION, JP

- Effective date: 20120705

2012-06-21 [REG DE R081] CHANGE OF APPLICANT/PATENTEE

- Owner name: JVC KENWOOD CORPORATION, YOKOHAMA-SHI, JP

- Free text: FORMER OWNER: VICTOR COMPANY OF JAPAN, LTD., YOKOHAMA, KANAGAWA, JP

- Document: DE 69703924

- Effective date: 20120430

2012-06-21 [REG DE R082] CHANGE OF REPRESENTATIVE

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- Representative's name: WAGNER & GEYER PARTNERSCHAFT PATENT- UND RECHT, DE

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2012-06-21 [REG DE R082] CHANGE OF REPRESENTATIVE

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- Representative's name: WAGNER & GEYER PARTNERSCHAFT MBB PATENT- UND R, DE

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2012-04-30 [REG DE R082] CHANGE OF REPRESENTATIVE

- Document: DE 69703924

- Representative's name: WAGNER & GEYER PARTNERSCHAFT PATENT- UND RECHT, DE

2002-01-09 [26N] NO OPPOSITION FILED

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-04-27 [ET] FR: TRANSLATION FILED

2001-02-22 [REF] CORRESPONDS TO:

- Document: DE 69703924 20010222

2001-01-17 [AK] DESIGNATED CONTRACTING STATES:

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1998-05-13 [AK] DESIGNATED CONTRACTING STATES:

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1998-05-13 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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